DE2152361A1 - STATIC PUNCH CARD READER, IN PARTICULAR FOR TIME RECORDING DEVICES - Google Patents

Description

HANS WESTPHAL ™ vmmoHfcsdi «« »« »« « KlAUSWESTPHAt SSSw ^ aIi p ^,

OTTO BÜCHNER θοοο munchin «ο (Ρα · ΐη _β )

PATENTANWÄLTE Floemonnitroß «30α

Phone: 0811-832446

Our reference: 581.41

J. Schlenker-Grusen, 722 Schwenningen a.

Statlaoher punch card reader «especially for Time recording devices according to patent

(Patent application P 21 19 658.7)

The invention relates to a static Loohkartenleeer, which is particularly useful for reading the data carrier, for. B. the so-called stamp cards, τοη Zeitregistrisrgeräte is suitable. It is characteristic of a static punch card reader that the electrical signal corresponding to all the information on a punch card is available for a long time in the form of an information lookup at the exit deo reader cure query.

To generate the signals, there is at least one loose look with a large number of rows and columns in the Leoer

SAD ORtQtNAt 309818/0379

according to the information holes on the Looh card arranged scanning pins provided.

Fm error-free reading of the usually manual To enable introduced punch card, it must be in a precisely defined position with respect to the reading block be brewed, whereby the Loohkarte must be removed from external influences during the reading process.

Zar input of information in data acquisition systems static punch card readers are known as single devices. With these devices, the Looh card ■, manually or by means of a motorized one Feed device in a card slot or the like. inserted up to a firm stop. A limit switch is provided in the lower area of the shaft, which is actuated from the lower edge of the inserted card immediately before reaching the end position. This switch triggers the scanning process, with which the read blooke be pressed with their stylus against the punch card. The stylus tsfce through the loops through while the rest. Touch the map rest, whereby in a known manner the the r.ochungen corresponding static signal for any long duration is generated *

The game of Taatstifte within the holes of the punched card or the Quersohnittsverhältnis the probe pins with respect to the holes determines the Unempfindlichsteit the charging device to errors in the positioning duv punch card to read block, the cross section of the sample

309813/0379 saö

215/361

However, pens are limited for reasons of moisture, because on the one hand the pins would have to transmit enough contact force and on the other hand that of the pins The surface pressure generated on the punch card must not be so great that the card is damaged. So are the durohameter of the pins set downward limits, so that according to this tolerance range determined by this an exact positioning of the punch card within the card slot before reading is necessary.

In the case of the known static Looh card readers the positional orientation of the card within the slot, as mentioned, in that the card with its lower Hand actuates a limit switch when inserting »which triggers the scanning process. This procedure is particularly useful for time recording devices the following Naohteile.

For devices with manual card entry, which are widely used because of their simple structure find, the positioning of the map world-wide depends on the proper operation. So can the situation of the card relative to the leaeblock can be influenced by the operator in that he inserts it slowly or quickly. In addition, the travel of the limit switch influences the sampling point. To eliminate these sources of error, the punch card readers are often equipped with a motor feed that automatically inserts the card brings read-oriented position. This is caused by the fact that the card has motor-driven friction rollers or the like. Is pressed against the stop, whereupon he is at

are at the Anaohlag or the scanning shift time delayed triggering limit switch is operated. This type of input prevents errors caused by too early initiation of scanning as a result of changes to the switching car be evoked. In this way, the card is safely removed from the operator's control.

Compared to devices with manual card feed ^ these devices, however, in their construction and maintenance laborious.

The positioning of the card by means of the lower edge of the card is also disadvantageous in that it is material-related Length and distance tolerances of the punch cards have a decisive influence on the reading reliability. That's how it is Map of climatic changes in length and distance subject. Often times, time attendance cards are subject to climatic conditions that differ greatly from those of the exam the normal climate on which the punch cards are based. Studies have shown that the climatic conditional. th changes in length and distance when orienting the "Card at the bottom of the card in the order of magnitude of the Game of the stylus are within the Loohongen. This length tolerance then has a particularly disadvantageous effect off if the reference line when punching the card is different than when reading in the time recording device.

The invention has for its object to be a simple built-up static punch card reader, boi to which the aforementioned Pelller springs are largely excluded without the card being withdrawn by a motor

1 Γ, «» IM U Π i ^r '; BAD ORfQiNAL

is required and which is known to be rough Conditions of use in the company ^ works reliably.

This is how the invention of oinori, a static punch card reader, goes well with a slot for manual insertion of punch cards, at least one le3ebloek sum scanning the punch card and a circuit arrangement controlled by the punch card that triggers the scanning process the end. This device is especially for the time recording device according to patent (patent application P 21 19 658.) determined.

According to the present invention, this object is achieved solved that a scanning unit with at least one scanning pin is connected to the reading look, which one is on the same side as the information punching assigned to punched control loops in the punch card is and the triggers from one in the map schaoht provided limit switch that can be actuated from the lower edge of the punch hole rests on the punch card in such a way that that it falls into the control perforation with further relative movement of the punch card and scanning unit and here the Loohkarte read stereo-positioned and actuates a switch that triggers the scanning process.

Crucial difference of the punch card reader according to the invention compared to the well-known iat that the orientation of the punch card is not based on the lower edge of the hole card but with the help of Kontrallocbmigfan

0AD ORIGINAL 3 0 9 8 1 8/0 3 7 9 - G -

follows. Since these control requirements are co-ordinated with the information requirements, the control size of the He ^ BtG Ilirag is the initiation and the. Scanning the punch card the same. Furthermore, because of the short distances between the information holes and control holes, changes in length due to climatic influences only have a minor effect.

By means of the lower edge of the card, on the other hand, is only the scanning process for finding the control solution triggered, so that neither length changes of the punch card nor the Sohaltweg of the limit switch-B the Influence the position of the information loops in relation to the reading block can.

The scanning unit expediently has several preferably two ^ Abtaetstifte, which in the same Height are arranged at a distance next to each other below the scanning pins of the reading block. With this one Structure must be in the punch card together with the information loohungen corresponding KontjöLlochungen are punched, preferably one line below of the field having the information perforations are provided.

The scanner unit and punch card must be used to locate the Kontrollocfcung, as mentioned, moved against each other v / earth. This relative movement V ^ nn on the one hand beL ntillötehender abtaatelnheit dar-cli the 'advancing movement the card itself orzeugi; will. ! is laughable

«AD

309818/0379 " ι _

here that the insertion speed and the insertion force is influenced by the operator, which can lead to damage, especially in rough operating conditions the card can lead. For example, if the card is fed too fast or too fast, the control perforation can occur through the follower pin that fell into these control holes widened or even torn out, so that the desired exact positioning is not guaranteed were.

In order to avoid this Haohteil, after a Another proposal of the invention proposed a known clamping device in the Schaohtbereich to be provided, which locks the punch card automatically when the limit switch is actuated from the edge of the punch card. In this arrangement, the output unit with the reading block coupled to it is opposite to the input device so arranged displaceably that they control loohungen by means of a suitable torso lifting device can visit automatically.

In this way the part of the punch card containing the information is under the direct influence of the user withdrawn.

Compared to the known Loohkartenlesera with motor but this arrangement has the advantage that the card can be sucked out at the auo the shaft projecting part after the information transfer wader manually lr * mn _f σο that a Customized "output device is üborfHisnlß.

3 'r, ■■■■ · ■

BATH ORIGINAL

Instead of the limit switch and / or the stylus © of the electromechanically operating Atotasteiaheit can Light barriers, elelctro-pneumatiscae scanning means or the like. Use.

According to a further proposal of the invention, the control perforations, which are primarily used as ball markers for the scanning unit, can also be used as information carriers . B. for the presence of cards, job tickets, Verkstoffkarten or the like "is. In this Pail the Abtaeteinheit must. correspondingly have a plurality of sensing pins or the like. means the maximum possible number τοη Kontrollochungen that gind coupled to a known signal generator which, depending on the card type a signal that can be processed, for example, in the data transmission system or the data memory is generated.

Structure and puncture method of the Looh card reader according to the invention are below based on two exemplary embodiments shown in the drawings are explained in detail. In these show:

3 0 9 ü 1 a ^{/ r} ■? <;, '

BAD ORiG ^f NA.L

Figure 1: Front view of the loclikartenleserB according to the invention with reading room; inserted punch card;

FIG. 2: Bottom view of the laser according to FIG. 1;

FIG. 3: side view of the reader according to FIG. 1 from the right;

FIG. 4: Section along the line IY-IT in FIG. 2;

Figure .5: Side view of the reader according to Figure 1 from the left
and

FIG. 6: side view corresponding to FIG. 5 of an inventive Reader according to a second embodiment with a device for automatic Searching for the control loops.

The punch card reader explained in detail below is for this in detail in the documents of the patent (the patent application P 21 19 658) besohrieteie Time recorder determined. This device, denoted there by number 28, is used to scan a specific device Area of a punched card inserted in the card slot.

This punch card 1, which in the illustrated arrangement in lower Re5.1 a field 1a with information looohiingeri 1b bo-

• AD ORIGINAL

- Ιο -

309818 / OV 9

- ΊΟ -

sits, serves as a reusable data carrier, on which in the upper ceil in not shown white the Times of a whole series of events can be printed.

In the line below the information field 1a are symmetrical to the longitudinal axis of the data carrier in the second and eleventh column in accordance eggs invention superiors W punched battered Kontrollochungen 1c. Another arrangement of the control perforations is also conceivable. If the card 1 is to be printable on both sides, however, a symmetrical arrangement to the longitudinal axis is necessary. In the case of one-sided printing of the card, on the other hand, an asymmetrical arrangement of the control perforations can also be possible. to get voted. This has the advantage that the control perforations at the same time control that the punch card is inserted correctly, so that the switch 2 for the corner vacancy control previously proposed can be omitted in this Pail.

The reader according to the invention is with its base plate 3 on a not shown card slot of a time tracking device assembled. He has a reading block 4 with Abtaetstifte 4a. corresponding to the columns and Lines of the information holes 1b to be scanned Punch card 1 are arranged.

Next to the Lsseblock 4 with the scanning pins 4a is a Scanning unit with scanning pins 5 to search for αεί »control perforations 1c provided. The configuration of this scanning unit is from deu hereinafter referred to as Lccehri '

»AD OWQiNAL 3 O ^f JBI 8 / O 3 7 9

beneath figures can be seen.

In Figure 1, the punch card 1 is shown in its end position. Here, the follower pins 5 prevail Control holes 1c. In addition, a number of the scanning pins 4a of the reading block eo 4 are in the information field 1a embossed information letters Ib occurred.

As already mentioned, the position of the punch card is checked with switch 2. For this purpose there is a corner 1d of the punch card trimmed in such a way that the switch arm 2a of the switch 2 is not actuated in the drawn position of the punch card 1. If the punch card is reversed pushed in, the hold arm 2a is deflected from the corner 1e, so that the switch 2 sends a control signal generated.

If this switch 2 for the corner vacancy control is lifted, another limit switch 6 is provided in the lower area of the card holder to trigger the search process. Be Sohaltana 6a is deflected _v before the scanner pins 5 equal to the Kontrollochungen 1c.

The switch 6 is located in the circuit of the Erregerapulen Z31ektroraagneten 7. The displaceable in the direction of Spulene.ch.se cores 7a of the electromagnet 7 with each other Nva pieces 9 j Bolsen 10 via angle extending over a B2rüc3ce 8 (see FIG. 2) with horizontal Pounding? 11 in connection, at the front end of the

8AD ORIGINAL

309810/0379

Kontrolloohungen 1c associated keyboard pins 5 provided are.

If the cores 7a are drawn into the coils when the electromagnets 7 are excited, the feeler pins 5 are pressed against the perforated card 1 by means of the arrangement described by the dex *. The contact time of the switch 6 is selected so that the cast pins 5 rest on the punch card 1 before the control holes 1c are at the level of the pins 5.

With further insertion of the punch card against the force of the resilient switching arm 6a of the switch 6 slide the stylus 5 on the card until it is in the control awards come up. As a result, the punch card 1 is defined by the Taatstifte 5 Positioned in relation to reading block 4.

As can be seen in particular from FIG. 2, an adjusting screw 12 secured with a lock nut is provided on the bridge 8 and acts on a switch 13. This switch is in the circuit of the solenoid 14 actuating the lee block 4. If the scanning pins 5 enter the control loops 1o, the switch 13 is actuated by means of the bridge 8 and the adjusting screw 12, so that the electromagnet 14 is excited and the reading process is initiated.

It is, however, a further proposal of the invention also mögljoli, each follower pin 5 has its own switch to be assigned and to omit the connecting bridge 8. at With this arrangement, the "two switches can be used at the same time."

8AD

3 O 9 S 1 ft / c? 7 8

I.) -

• ^;:: -J152361

~ 13 -

All signal transmitters are used so that, depending on the number and arrangement of the control perforations, signals can be generated to differentiate between anterachied types of cards.

The sound of the electromagnet 14 generates a pressing force must be evenly tmd symmetrically on the reading look 4 be transmitted in such a way that it is parallel to itself wi pressed against the punch card:? d.

The reading block 4 is fastened to a guide frame 20a, b be, which is slidably mounted on guide pillars 15 directed parallel to one another and perpendicular to the Loohkarte plane.

The movement of the core 14a of the electromagnet 14 is the mounted in a bridge 24 ilchubstange 16 on the one hand via the connecting piece 1Vi, the toggle 17b, the bolt 18a and the compound A-tab 18 on one side of the Pührungs frame 20a _t 20b Wear; ) .. on the other hand, this movement of Yerbindungantüok 17a via the second toggle lever 17o, the Wipp3 is consisting of the pivotally interconnected TarhindungsstUokou 19a, 19d and the two pivotable about the pin 21 Hebein 19b and 19c, the push rod 22 uui'den bolts on the other side of the Mhrungsrahmoiin: 0a, b transferred. The kDnatruktionabdding symmetrical ßennsptuiohung the Kniebibel systems 17a, b, o, gen had a nuhwltiimcndo Lagorim. "Dor Brüoko ? .A, which aoult by gerlugo \ is ^ Ioiciian ;! ¹ ;?; Gungen tolernr.scheCii-a ^ u co πηάr.scheCii-a ^uroh ; νηαντw.vianhun KnuM; aa-

30 0 Π '8 .'037 Π

-H-

grabbed animal-induced forces in the stretching direction of the toggle lever system 17a, "b, c. Since the force generated by the electromagnet 14 with this arrangement acts centrally on both sides of the reading block 4, the resulting force is approximately in the middle of the reading block 4. Any remaining asymmetry !! the actuating force exerted by the toggle lever system 17a, b, o and the resulting spring force of the resilient follower pins 4a are compensated for by the described mounting of the push rod W 16. This arrangement causes a largely tilting moment-free, parallel displacement of the guide frame 2oa, b on the guide rails 15 ·

As the figures also show, the push rod 16 is connected to the core 25a of a further electromagnet 25 serving for resetting. The core 25a is assigned a stop 26 arranged in such a way that the core 25a aa abuts it when the toggle lever system 17a, b, ο is brought into a locking position slightly beyond the extended position in the direction of the reset magnet 25. In this Verriege-Iungsa division, the circuit of the electromagnet 14 is interrupted. For this purpose, the microscopic holder 27 located in the circuit of the electromagnet 14 is actuated by the connecting piece 19d of the rocker 19. The reading block 4, which is fastened to the guide frame 2oa, b by means of bolts 28, thus remains in the scanning position until the back cell magnet 25 is energized on the command of the data transmission system or the data memory. In this case dio ilohu actuate 16 in the opposite direction bia zua Vimhlag 29:; urüokgefUhrfc, so that the reading block again takes the rest position shown in the drawings.

3 0 ^c i 3 1 8 / Π 17 ^v i

BAD ORiGfNAL

At the same time the circuits of the electromagnets 7 interrupted the scanning unit, so that the scanning pins 5 return to their rest position and the im Release the punch card in the slot »

If mechanical locking of the scanning block is not necessary or not desired, the explained arrangement can be modified in the following way.

The stop 26 is adjusted in such a way that the extended position of the toggle lever system 17a, b, c is just noh is achieved. At this point in time, a torso holding resistor is put into the circuit by means of switch 27 of the ELektromagBten 14 switched on, the dimensioned is that the excitation rule τ? on a sufficient holding current is flowed through. The return to the starting position can be done by an energy storage device, not shown, z. B. a spring, so that the Rüokstellmagnet 25 can be omitted in this Pail.

Otherwise, the arrangement according to the invention can be used modify in such a way »that instead of the electromagnets 7» and 25 other force members such as B. hydraulic or pneumatic elements can be used.

A modification of the punch card reader according to the invention is shown in a partially sectioned rare view according to FIG. The punch card reader itself corresponds in its structure the device according to the preceding

- 16 -

3 C UI: Mj <: 3 7 §

written figures. In addition, he has a facility on, which allows the checks to be carried out automatically and to position the reading block 4 with respect to the information field of the punch card so that it is readable. The Suoh process explained below is triggered, if the punch card is within the card slot with a clamping device, not shown, is fixed.

* A gear motor eats to carry out the search movement 30 is provided, on whose output shaft a cam disk 31 sits. Against the circumference of the cam

31 is a connecting bolt 32 with a roller 33 under the action of a pretensioned spring 34. This spring 34 is between a collar 32a of the bolt

32 and a pillar connected to the base plate 3 35 clamped. In contrast to the reader explained above, the reading block 4 is in this arrangement Movably mounted on bolt 36 in the axial direction of bolt 32. When the cam 31 rotates in the direction of the arrow thus leads the reading block 4 and with it the scanning unit with the not visible from this drawing, the scanning pins assigned to the control loops under the action of the spring 34 an oscillating movement in Einaohubriohtung through until the in ready In the manner described, feeler pins 5 resting on the punch card fall into the control holes 1c of the punch card 1. With the incidence of the stylus 5, the switch 13 is actuated, which now switches off both the motor 3o and the electromagnet 14 for triggering of the reading advance ^ it switches on. The other processes are the same üeti explained above. After resetting the reading

- 17 ^ ; »ti i \ ι π / '■> - 7 2 BAD

block 4 in its rest position, the clamping device, not shown, is released again, κο that the card can be removed Ir & nn. At the same time, the cam disk 31 is surtiekgedrsht into its rest position, in which the roller 33 rests on a section of the cam disk 31 with the largest diameter. As a result , the reading block 4 and thus the scanning unit are returned to the lowest position.

Patent claims:

- 18 -

ORIGINAL

3C9818 / Q379

Claims (1)

1i Claims Al Static punch card reader with a slot for the manual insertion of punch cards, at least one reading block for scanning the punch card and a circuit arrangement controlled by the punch card and triggering the scanning process, in particular for a time recording device according to patent (patent application P 21 19 658), characterized in that with the reading block (4) a Scanning unit is connected to at least one scanning pin (5), which one simultaneously with the information perforations (1b) punched control perforation (1c) in the punch card (1) is assigned and triggered by a card slot provided from the lower edge of the perforated cardboard Operable limit switch (6) on the punch card (1) rests in such a way that, with further relative movement of the punch card (1) and scanning unit, it enters the control perforation (1c) occurs and in this case the punch card (1) is positioned for reading and a trigger the scanning process ^ u. Switch (13) actuated, 2. Punch card reader according to claim 1, characterized in that the scanning unit preferably has two scanning pins (5) has, which are arranged at the same height at a distance next to one another below the Abtaatstifte (4a) of the reading block (4) are, wherein the punch card (1) has corresponding Eontrolloehungen (1o), which is preferably a rope vorgelnm aind below the field (1a) having the information perforations (1b). 309818/0379 - 19 - © AD Punch card reader according to Claim 1 or 2, characterized in that a punch card is located in the area of the slot after pressing the limit switch (6) locking clamping device is provided and that the scanning unit with the reading block (4) coupled with this to automatically search for the control loops (1o) can be displaced against the input direction by means of a feed device (30 to 34) (Figure 6} 4. Punch card reader according to claim 1, 2 or 3, characterized ge kennseiohnet that instead of the limit switch (6) unc / ccler of the scanning pins (5) of the scanning unit light barrier !, electro-pneumatic scanning means or the like. Are provided. Punch card reader according to one or more of Claims 1 to 4, characterized in that the plurality of scanning pins (4) or the like. -mittel having scanning unit is coupled to a signal generator, wherein the Loohkarten depending on the type of control perforations, different numbers and arrangements to produce a die Have genus characterizing signal. 6. Punch card reader according to one or more of the claims 1 to 5 »characterized in that the scanner line; '. I; has at least one electromagnet (7), in aesa «AD ORIGINAL - L'o 301) 81 O / 0379 Circuit of the limit switch that can be actuated by the punch card (1) (6) and with the core (7a) of which the follower pin (5) is positively connected, the limit switch (6) is arranged with respect to the punch card (1) in such a way that it is closed before the Kontrolloohung (1c) of the punch card (1) is level with the follower pin (5). 7. punch card according to claim 6, characterized in that a switch (13) is arranged in such a way on the scanning unit that it is activated after the scanning pin or pins have been immersed (i>) into the control hole (s) (1c) one the Leseblook (4) excited electromagnet (14), 8. Punch card reader naoh claim 7, characterized in that the core (14 a) of the electr magnet (14) has a Push rod (16) and a toggle system (17a, b, c) with the guide pillars (15) preferably on parallel slidably arranged reading block (4) is positively connected. Punch card reader according to Claim 8, characterized in that the push rod (16) is connected to the core (25a) of a second electromagnet (25) which serves to reset and can be controlled by the data transmission system ) is interrupted when the knee lever system (17 a, b, c) over the extended position © 3 0 9 8 1 B / 0 3 ΪΊ bad original Γ1 - liinaus in the direction of the Ruckstell.tsagne ΐεη (25) is brought. 1o. Punch card reader according to claim 8, marked daäuroh, that the Sohubstange (16) against the action of a restoring force is extendable, in its end position with not yet fully extended toggle lever system (17a, b, o) actuates a switch (27) which the excitation current of the "feed magnet (Η) is preferred reduced to the lower holding current by switching on a resistor and whereby the excitation electricity circuit controlled by the data transmission system sur return of the reading block (4) is interrupted. 11. punch card reader according to claim 8, 9 or 1o, characterized in that the means of the push rod (16) operable toggle lever system (17a, b, c) on the one hand with one side of the parallel displaceable reading ~ blockes (4) and on the other hand with a lever arm one Rocker arrangement (19 a, b, c, d) is connected, the other Hebelai a via a push rod (22) with the on the other side of the reading block (4) and which around a centrally arranged, perpendicular to the! guides (15) of the reading eye (4) Axis (21) is pivotable. 12. Punch card reader naoh claim 3 with one or more of the preceding claims, characterized in » BATH ORIGINAL 309818/0379 - that the reading block (4) rattles with the scanning unit a motor-driven cam (31) » one under spring pressure (34) on the cam resting plunger (32) connected to the reading block parallel to the card slot until it collapses the scanning pins (5) into the control holes (1c) is displaceable, the cam 31 after completion of the scanning process in its starting position to return. 13. Punch card reader naoh one or more of the claims 6 to 11, characterized in that instead of electromagnets (7, 14, 25) other Force members such as pneumatic or hydraulic elements are provided. 309818 / 037S Blank page